3M Littmann 3000 User manual

Made in Denmark for 3M Health Care, St. Paul, MN 55144
(U.S.A.) 1 800 228-3957 • Fax [phone]
Visit our web site: http://www.3M.com/Littmann
Attention, see instructions for use.
0086 3M Health Care D-41453 Neuss, Germany
3M is a trademark of 3M.
Littmann is a registered trademark of 3M.
38-9018-8324-9 ©3M 2005 All rights reserved.
• Amplification up to 18 times greater than the best conventional Littmann stethoscopes
• Reduction of unwanted ambient noise by an average of 75%
• Easy to switch between bell and diaphragm frequency modes
• Lightweight and well-balanced
• Versatile chestpiece can accommodate infant, pediatric and adult patients
• Ergonomic, single-button operation
• Uses one AAA battery
AMPLIFY THE SOUNDS YOU WANT TO HEAR WITH LESS
DISTRACTING AMBIENT NOISE
™
Electronic Stethoscope
MODEL 3000
with Ambient Noise Reduction

The following symbols are applicable to this
device:
• Attention, see instructions for use.
• Indicates Type B Equipment: The equipment
provides protection against electrical shock and
electrical current leakage.
• Protected against splashing liquid
(chestpiece only).
• This product and package do not contain
natural rubber latex.
Each Littmann Electronic Stethoscope Model 3000 has a
serial number beginning with the letter “R”.
Indications:
This device is intended for medical diagnostic purposes
only. It can be used for the amplification of faint heart,
lung, and other body sounds as well as normal
auscultation and selective frequency filtering. This
product is not designed, sold, or intended for use except
as indicated.
Caution:
Failure to follow the directions in this manual could
result in damage to the device or possible injury to the
user.
Failure to follow general use and maintenance
recommendations could result in damage to the internal
components of the Littmann Electronic Stethoscope.
Internal damage could cause malfunction of the product,
ranging from a slight decrease in auditory response to
complete failure of the product.
• Stethoscope not suitable for use in the presence of a
flammable anesthetic mixture with air or with oxygen
or nitrous oxide.
• Use only AAA alkaline batteries. Carefully follow all
cautions, warnings, and instructions on the battery
package. When the Low Battery Indicator Tone is
heard, replace the battery within two hours. There is no
acoustic (non-amplified) mode available in the
Littmann Electronic Stethoscope.
• The Littmann Electronic Stethoscope has been tested to
be resistant to both electromagnetic fields (EMI) and
electrostatic discharge (ESD). However, it may be
susceptible to very strong radio frequency signals or
portable and/or mobile RF devices. When using your
stethoscope, if you hear sudden or unexpected sounds,
you may be in close proximity to a strong radio
transmitter. If this should occur, move away from the
radio’s transmitting antenna.
• Do not immerse the stethoscope in any liquid or subject
it to any sterilization processes.
• At the end of this device’s useful life, dispose or recycle
in accordance with your local, state, and governmental
regulations.
• Refer to appendix for information relating to
electromagnetic compatibility testing.
• If you experience any problems with the Littmann
Electronic Stethoscope, do not attempt to repair it
yourself. Please notify the 3M Health Care Service
Center at 1-800-292-6298 for directions on shipping
and receiving.
2
IPX4
1
English
3M™ Littmann® Electronic Stethoscope Model
3000 with Ambient Noise Reduction
Congratulations and thank you for choosing the 3M™
Littmann® Electronic Stethoscope Model 3000 with
Ambient Noise Reduction, the next generation
stethoscope that offers the very latest in advanced
auscultation technology.
This powerful, electronic stethoscope provides the
superior acoustic sensitivity users have come to expect
from the Littmann brand, and more. It includes state-of -
the-art amplification and filtering systems, ideal for
picking up difficult-to-hear heart and other body sounds.
It features ambient noise reduction technology (patent
pending) that reduces an average of 75% of distracting
room noise. The versatile chestpiece can accommodate
infant, pediatric and adult patients, and it is
ergonomically designed for easy hand manipulation and
patient comfort.
Powered by a single AAA battery, the stethoscope is
conveniently controlled by a single button on top of the
chestpiece. Amplification, up to 18 times greater than
the best conventional scopes, and an advanced filtering
system providing two frequency modes (standard bell
and diaphragm) allow outstanding heart and lung
auscultation.
Because of the unique design of its diaphragm, the
Model 3000 can be used comfortably on all body types
and sizes. The eartubes are capped with 3M™
Littmann® Snap Tight Soft-Sealing Eartips for excellent
acoustic seal and comfortable fit. They, and more
importantly, the patented ambient noise reduction
technology internal to the chestpiece, significantly
reduce distraction from unwanted room noise, greatly
enhancing overall utility.
With its ergonomic design, state-of-the-art amplification
and filtering systems, and ambient noise reduction
technology, the Littmann Electronic Stethoscope Model
3000 is a powerful, effective tool for health care
professionals. Most of all, know that the Model 3000
carries the Littmann brand name, the name known
worldwide for unsurpassed quality. As a trusted leader in
auscultation technology, the Littmann brand is your
assurance of acoustic superiority, innovative design, and
exceptional performance.

4
Headset Positioning
Your new Littmann Electronic
Stethoscope is designed to give
you a very comfortable,
acoustically sealed ear fit. Notice
that the eartubes are permanently
set at an angle to accommodate
the typical anatomy of the ear
canal. The eartips should point in
a forward direction as you insert
them into your ear canals.
To reduce spring tension in the
headset, hold each eartube at the
bend near the eartip and gradually
pull apart until fully extended (180
degrees).
To increase spring tension, grasp
the headset with one hand where
the eartubes enter the plastic
tubing and squeeze until the
plastic tubing on one eartube
touches the other. Repeat as
necessary.
For maximum acoustic performance, comfortable
patented Littmann Soft-Sealing Eartips are provided
with your stethoscope.
The stethoscope utilizes a unique
design for attaching the eartip to
the eartube. The eartips are
pushed on to the end of the
eartube and snapped tight. To
remove, pull firmly on the eartip.
Additional Littmann eartips are available. To order,
contact your Littmann Stethoscope distributor or the 3M
Health Care Service Center.
Turning Off the Stethoscope
The stethoscope will automatically turn itself off after 3
minutes of no button activation. You can also turn the
scope off manually by depressing either filter mode
button and holding it down until you hear a diminishing
triple tone.
Battery Life
The battery will last for approximately 200 hours of
continuous use. In a typical clinical setting, this
represents about six months. When the Low Battery
Indicator Tone is heard, sufficient battery power remains
for approximately 2 hours of normal auscultation
activities. When the battery is completely depleted the
scope becomes inoperable. It is important to remember
that there is no acoustic (non-amplified) mode available
in the Littmann Electronic Stethoscope. When the
battery is finally exhausted, the stethoscope will not
operate.
Correct
Incorrect
Reduce Tension
Increase Tension
Instructions for Use:
The stethoscope is controlled by a single button on the
top of the chestpiece and has four activation points
identified as follows:
Button symbol Function
Bell filter button
Single Tone
Diaphragm filter button
Double Tone
Increase volume button (Single tone
representing volume increase each
time button depressed)
Decrease volume button (Single tone
representing volume decrease each
time button depressed)
Turning on the Stethoscope
The device may be activated by pushing one of the
two filter-mode button
or
(The specific identifying filter tone will be
heard upon activation)
Operation
Select the frequency mode desired for auscultation by
pushing either the bell or diaphragm filter symbol (this
is accomplished when activating the stethoscope
initially). Adjust the volume to the desired level by
pushing either the plus or minus symbol. At the 4th
volume level, the stethoscope is set to the approximate
gain of a typical acoustic stethoscope.
You can change the preset volume level by holding
down the volume button at the desired volume until you
hear a double tone signal. The stethoscope will start at
that volume level each time the scope is turned on until
you program it differently. Changing the volume during
auscultation will not affect the preset volume setting
you have established.
Auscultate as you would using an acoustic stethoscope.
It is important to find a comfortable grip that allows you
to hold the stethoscope in a secure but relaxed manner.
Use the bell and diaphragm modes to accentuate or
attenuate different heart and body sounds. Low
frequency sounds have a tendency to mask or obscure
the high frequency sounds. Adjust volume control as
necessary.
3
.

Battery Replacement
To insert or replace the battery,
use a coin to loosen the screw on
the underside on the neck of the
chestpiece and slide open the
battery compartment. Remove an
old battery by pushing through
the slot on the backside of the
battery compartment. Insert a
fresh battery with the positive end
toward the eartubes (the plus sign
will be visible in the battery
compartment after insertion).
Slide the compartment closed and
tighten the locking screw.
One battery is enclosed for use
with the Littmann Electronic
Stethoscope.
Use AAA alkaline batteries only
(IEC LR03, 1.5V). Carefully
follow all instructions and
warnings on the battery label and
package.
Remove the battery when the stethoscope will not be
used for several months.
General Use and Maintenance
Cleaning The Chestpiece
Under normal conditions, it is unnecessary to remove
the diaphragm for cleaning. The diaphragm can easily
be cleaned by using an alcohol wipe. If, however, it is
necessary to remove the diaphragm, carefully follow the
instructions below.
Diaphragm Removal
With diaphragm side up, using a thumbnail, lift the
underside portion of the diaphragm out of its designated
groove, and peel it off of the chestpiece. The groove that
holds the diaphragm in place can be cleaned by sliding
the edge of an alcohol swab around the groove. All parts
of the chestpiece can be wiped down with alcohol.
IMPORTANT: The stethoscope should not be immersed
in any solution. Excess liquid used in the cleaning
process can result in moisture getting into the internal
components.
Diaphragm Reassembly
Once the diaphragm is completely dry, insert the
diaphragm into the groove of the rim, starting at one
point, and run your finger around the diaphragm until it
is seated back in the groove.
Other Considerations
• To extend the life of your stethoscope, avoid extreme
heat, cold, solvents and oils.
• Eartips, eartubes, plastic tubing and chestpiece can be
wiped clean with alcohol.
• Do not immerse the stethoscope in any liquid or
subject it to any sterilization process.
• Eartips can be removed for a more thorough cleaning.
• Remove the battery whenever the stethoscope will not
be used for several months.
• Operating range 32˚ to 122˚F (0 to 50˚C), 15 to 95%
relative humidity.
Failure to follow care and maintenance
recommendations could result in damage to the internal
components of the Littmann Electronic Stethoscope.
Internal damage could cause malfunction of the product,
ranging from a slight decrease in auditory response to
complete failure of the product.
If you experience any problems with the electronic
stethoscope, do not attempt to repair it yourself. Please
notify our 3M Health Care Service Center for directions
on shipping and receiving.
Littmann Stethoscope Service and Warranty
Program
Your Littmann Electronic Stethoscope comes with the
finest service and warranty policy in the industry. The
Littmann Electronic Stethoscope Model 3000 is
warranted against any defects in material and
manufacture for a period of two years. If a material or
manufacturing defect is discovered during the warranty
period, repairs will be made without charge upon the
return of the instrument to 3M, except in cases of
obvious abuse or accidental damage.
For maintenance or repair services in the
U.S.A., send your stethoscope directly to:
3M Health Care Service Center
3M Bldg 502-1W-01
3350 Granada Ave N
Suite 200
Oakdale, MN 55128
1-800-292-6298
Include your name, address, and phone number inside
with your stethoscope.
In Canada:
3M Health Care Service Centre
3M Canada Inc.
80 Enterprise Drive South
London, Ontario
Canada N6N1C2
1-800-563-2921
Outside of the U.S.A. and Canada, contact your local
3M subsidiary for maintenance and repair information.
65

Appendix:
Table 201
Declaration – Electromagnetic Emissions
The 3M Littmann® Electronic Stethoscope, Model 3000, is intended for use in the electromagnetic environment specified below.
The customer or the user of the Model 3000 should assure that it is used in such an environment.
Emissions test Compliance Electromagnetic environment – guidance
RF emissions CISPR 11 Group 1 Model 3000 uses RF energy only for its internal function. Therefore, its RF
emissions are very low and are not likely to cause any interference in nearby
electronic equipment.
RF emissions CISPR 11 Class B Model 3000 is suitable for use in all establishments, including domestic
establishments and those directly connected to the public low-voltage power
supply network that supplies buildings used for domestic purposes.
Harmonic emissions Not applicable
IEC 61000-3-2
Voltage fluctuations/flicker Not applicable
emissions IEC 61000-3-3
Table 202
Declaration – Electromagnetic Immunity
The 3M Littmann® Electronic Stethoscope, Model 3000, is intended for use in the electromagnetic environment specified below.
The customer or the user of Model 3000 should assure that it is used in such an environment.
Immunity test IEC 60601 test level Compliance level Electromagnetic environment –guidance
Electrostatic ± 6 kV contact ± 6 kV contact Floors should be wood, concrete or ceramic
discharge (ESD ± 8 kV air ± 8 kV air tile. If floors are covered with synthetic material
IEC 61000-4-2 the relative humidity should be at least 30 %
Electrical fast ± 2 kV for supply lines Not applicable
transient/burst ± 1 kV for input/output lines
IEC 61000-4-4
Surge ± 1 kV differential mode Not applicable
IEC 61000-4-5 ± 2 kV common mode
Voltage dips, short < 5 %
U
TNot applicable
interruptions and (>95 % dip in U
T)
voltage variations for 0.5 cycle
on power supply
lines 40 % U
T
IEC 61000-4-11 (60 % dip in U
T)
for 5 cycle
70 % U
T
(30 % dip in U
T)
for 25 cycle
< 5% U
T
(>95 % dip in U
T)
for 5 sec
Power frequency 3 A/m 3 A/m Power frequency magnetic fields should be at
(50/60 Hz) levels characteristic of a typical location in a typical
magnetic field commercial or hospital environment.
IEC 61000-4-8
8
7

Table 204
Declaration – Electromagnetic Immunity (Continued)
The 3M Littmann® Electronic Stethoscope, Model 3000, is intended for use in the electromagnetic environment specified below.
The customer or the user of Model 3000 should assure that it is used in such an environment.
Immunity test IEC 60601 test level Compliance level Electromagnetic environment –guidance
Portable and mobile RF communications equipment should be used
no closer to any part of the Model 3000, including cables, than the
recommended separation distance calculated from the equation
applicable to the frequency of the transmitter.
Recommended separation distance
Conducted RF 3 Vrms Not applicable d = 1.2
3 P
IEC 61000-4-6 150 kHz to 80 MHz
Radiated RF 3 V/m 3 V/m d = 1.2
3 P 80 MHz to 800 MHz
IEC 61000-4-3 80 MHz to 2.5 GHz 80 MHz to 2.5 GHz
d = 2.3
3 P 800 MHz to 2,5 GHz
where P is the maximum output power rating of the transmitter in
watts (W) according to the transmitter manufacturer and d is the
recommended separation distance in meters (m).
Field strengths from fixed RF transmitters, as determined by an
electromagnetic site survey, ashould be less than the compliance
level in each frequency range, bInterference may occur in the
vicinity of equipment marked with the
following symbol:
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.
a Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios,
amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the
electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured
field strength in the location in which Model 3000 is used exceeds the applicable RF compliance level above, the Model 3000
should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such
as re-orienting or relocating the Model 3000.
bOver the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Table 206
Recommended Separation Distances Between Portable and Mobile RF Communications Equipment and the 3M™ Littmann®
Electronic Stethoscope Model 3000
The Model 3000 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The
customer or the user of the Model 3000 can help prevent electromagnetic interference by maintaining a minimum distance between
portable and mobile RF communications equipment (transmitters) and the Model 3000 as recommended below, according to the
maximum output of the communications equipment.
Rated maximum output Separation distance according to frequency of transmitters, d [m]
power of transmitter, P [W] 150 kHz to 80 MHz 80 Mz to 800 MHz 800 MHz to 2,5 GHz
d = 1.2 3 P d = 2.3 3 P
0.01 0.12 0.12 0.23
0.1 0.38 0.38 0.73
1 1.2 1.2 2.3
10 3.8 3.8 7.3
100 12 12 23
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be
estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the
transmitter in watts (W) according to the transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.
109